Determine the computing column of SQL Server

Source: Internet
Author: User

Purpose: to change a computed column to a non-computed Column

 

If columnproperty (object_id ('test'), 'totalprice', n' iscomputed') = 1
Begin
Print 'calculation column'
Alter table test drop column totalprice
 
End

Else
Print 'not a computed column'

Go

If not exists (select * From sysobjects A, syscolumns B
Where a. ID = B. ID and A. Name = 'test' and A. xtype = 'U' and B. Name = 'totalprice ')
Begin
Alter table Test
Add totalprice [money] default 0 with values

Exec ('Update Test Set totalprice = price * Amount ')

End
Go


 

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.